State two acid-base indicators and mention their colour change. – InterviewSolution

InterviewSolution

1.	State two acid-base indicators and mention their colour change.
Answer» Phenolphthalein and methyl orange are two acidbase indicators. Phenolphthalein is colourless in an acidic solution while it turns pink in a basic solution. Methyl orange gives orange colour with an acidic solution and yellow colour with a basic solution.

Discussion

No Comment Found

Related InterviewSolutions

One of the following does not inject an acidic liquid into the skini through its sting. This is:A. honey beeB. antC. waspD. nettle leaf hair
Wasp sting contains:A. a sugar solutionB. an acidic liquidC. a salt solutionD. an alkaline liquid
If someone is suffering from the problem of acidity after overeating, which of the following would you suggest as remedy? Lemon juice, Vinegar, Baking soda solution Give reason for your choice.
Which of the followig is treated with chlorine to obtain bleaching powder?A. `CaSO_(4)`B. `Ca(OH)_(2)`C. `Mg(OH)_(2)`D. `KOH`
What is the common name of the compound` CaOCl_(2)`?
The metal salt A is blue in colour. When salt A is heated strongly over a burner, then a substnace B is eliminated and a white powder C is left behind. When a few drops of a liquid D are added to powder C, it becomes blue again. What could be A, B,C and D?
A white powdery substnace having strong smell of chlorine is used for disinfecting drinking water supply at waterworks. Identify the substance. Give its chemical name and write the chemical reaction for its preparation.
When a solution is added to vanilla extract, then the characteristic smell of vanilla cannot be detected. State whether the given solution is an acid or a base.
How is the neutralisation of a carbonate with an acid different from the neutralisation of an oxide or a hydroxide?
Write an equation to show the reaction between Plaster of Paris and water